Fix subnets validation

PLANS.md

@@ -3279,9 +3279,9 @@ Real IPv6 remains separately unverified by the previously accepted test scope.
 
 ### Milestone 10 — Visible styled keyboard quick reference in bottom panel
 
-Status: in_progress (2026-10-26T20:52:01Z). The user retired M9 and explicitly
+Status: accepted (2026-10-26T21:07:24Z). The user retired M9 and explicitly
 directed development to continue. M1–M8 are accepted; M9 is no longer a
-prerequisite. M10 implementation, review, and validation are starting now.
+prerequisite. M10's scoped TUI checks and independent review passed.
 
 #### Outcome and scope
 
@@ -3301,10 +3301,10 @@ paragraph cannot meet the requirement.
 
 | Task | Owner | Scope and expected result | State |
 | --- | --- | --- | --- |
-| M10.1 | implementer | Inspect `src/tui/render.rs`, `state.rs`, `forms.rs` and `terminal.rs`; derive hints from actual supported keys and screen/form state. Implement the bottom panel with sufficient interior height, styled key/action groups and width-aware packing. | needs_changes: initial 7 render tests passed; independent R1/R2 found compact/form key-hint mismatches; targeted repair pending |
+| M10.1 | implementer | Inspect `src/tui/render.rs`, `state.rs`, `forms.rs` and `terminal.rs`; derive hints from actual supported keys and screen/form state. Implement the bottom panel with sufficient interior height, styled key/action groups and width-aware packing. | complete for task scope: R1/R2 repaired and independently re-reviewed; render 9/9 and forms 7/7 focused tests passed on integrated HEAD |
-| M10.2 | implementer | Cover resize, narrow/minimum terminals, list/details, forms, progress and QR disclosure with synthetic render/navigation checks. Update README shortcut guidance if needed. | pending |
+| M10.2 | implementer | Cover resize, narrow/minimum terminals, list/details, forms, progress and QR disclosure with synthetic render/navigation checks. Update README shortcut guidance if needed. | complete: render 13/13, TUI workflow 6/6 including PTY smoke; integrated review closed |
-| M10.3 | reviewer / repairer | Independent review of actual layout, hints versus handlers, readability, clipping and state correctness; repair and re-review actionable findings. | pending |
+| M10.3 | reviewer / repairer | Independent review of actual layout, hints versus handlers, readability, clipping and state correctness; repair and re-review actionable findings. | complete: R1 Clippy and R2 README precision repaired and independently re-reviewed with no remaining finding |
-| M10.4 | coordinator | Run integrated gates, record source/artifact identity and actual results, maintain this plan and make the scoped acceptance decision. | pending |
+| M10.4 | coordinator | Run integrated gates, record source/artifact identity and actual results, maintain this plan and make the scoped acceptance decision. | complete: integrated gates passed; source fingerprints and results in [M10 evidence](docs/evidence/milestone-10.md) |
 
 List/details quick reference must include navigation (`Up/Down`, `Enter`, `Esc`
 as applicable), `?` Help and `q` Exit, plus the implemented management keys:
@@ -3326,19 +3326,19 @@ Keep Help as the complete reference and preserve all existing operation semantic
 
 #### Acceptance and validation
 
-- [ ] M10-A1: the lowest bordered panel has visible interior text; at 80x24 all
+- [x] M10-A1: the lowest bordered panel has visible interior text; at 80x24 all
   applicable list actions are displayed in readable packed rows.
-- [ ] M10-A2: key labels are visually distinct with bold/color styling; action
+- [x] M10-A2: key labels are visually distinct with bold/color styling; action
   text is readable, and meaning remains understandable without color.
-- [ ] M10-A3: hints match actual key handlers, uppercase/lowercase and active
+- [x] M10-A3: hints match actual key handlers, uppercase/lowercase and active
   screen/form prerequisites; no hint implies a disabled operation can run.
-- [ ] M10-A4: resizing through 120x30, 80x24, 40x8 and the supported minimum
+- [x] M10-A4: resizing through 120x30, 80x24, 40x8 and the supported minimum
   34x8 causes no panic, overlapping borders or invisible footer text; compact
   layouts retain navigation/Help and indicate omitted commands. Below-minimum
   sizes retain a readable resize message.
-- [ ] M10-A5: list/detail navigation, forms, progress and QR remain usable;
+- [x] M10-A5: list/detail navigation, forms, progress and QR remain usable;
   footer rendering exposes no secrets and performs no application mutations.
-- [ ] M10-A6: focused synthetic rendering checks and all required Rust gates
+- [x] M10-A6: focused synthetic rendering checks and all required Rust gates
   pass; independent review closes actionable findings with recorded evidence.
 
 Planned validation: `cargo test --locked tui::`,
@@ -3346,37 +3346,131 @@ Planned validation: `cargo test --locked tui::`,
 `cargo clippy --locked --all-targets -- -D warnings`, `cargo test --locked`,
 `cargo build --locked --release` and `git diff --check`. Use synthetic fixtures
 and Ratatui test buffers; inspect styles as well as rendered text and geometry.
-No production or VM operations are needed for this presentation change. These
+No production or VM operations are needed for this presentation change. Actual
-checks have not been run for M10; no implementation or acceptance is claimed.
+integrated results and source identity are in [M10 evidence](docs/evidence/milestone-10.md).
 
 #### Review, evidence and handoff
 
 M10.1 initial implementation added visible styled footer rows and passed
 `cargo test --locked tui::render` (7/7), `cargo fmt --all -- --check`, and
-`git diff --check`. Independent review found **M10.1-R1 (P2, open)**: compact
+`git diff --check`. Independent review found **M10.1-R1 (P2, closed)**: compact
-rows advertise list navigation/Help during forms, QR, and pending work;
+rows advertised list navigation/Help during forms, QR, and pending work; and
-**M10.1-R2 (P2, open)**: generic form Enter is false for draft review and Tab
+**M10.1-R2 (P2, closed)**: generic form Enter was false for draft review and
-is missing from tabbed forms. Targeted repair/re-review is next; no acceptance
+Tab was missing from tabbed forms. Targeted repair added secret-free form key
-item is closed yet.
+capabilities and context-specific compact rows; independent re-review closed
+both findings on current integrated HEAD `e141c03`. Render tests passed 9/9,
+forms tests 7/7, format and diff checks passed. M10.2 coverage remains; no
+milestone acceptance is claimed yet.
 
-The user removed M9 as
+M10.2 added synthetic TestBackend coverage for 120×30, 80×24, 40×8, 34×8,
-a prerequisite without accepting its unchecked M9-A1–A9 criteria. The project
+below-minimum fallback, all applicable saved-client list hints, QR Esc/footer
-configuration specifies GPT-6-Sol/medium for the coordinator and GPT-6-Luna/high
+rendering, and key/action styles. README now describes contextual shortcuts.
-for all four custom roles. Start with M10.1, one writer at a time. The
+`cargo test --locked tui::render` passed 13/13 and
-coordinator owns this plan; record detailed evidence in
+`cargo test --locked --test tui_workflow` passed 6/6 including PTY smoke;
-`docs/evidence/milestone-10.md` only after actual checks exist. No new
+`cargo fmt --all -- --check` and `git diff --check` passed. Integrated review
-dependencies are planned.
+subsequently closed its findings. No VM or production operations were run.
+
+Fresh integrated review found **M10.3-R1 (P2, closed)**: Clippy failed on a
+collapsible `if`; repair preserved the action prerequisite and the gate passed.
+It also found **M10.3-R2 (P3, closed)**: README overstated narrow-screen Help
+availability; repair qualified the claim to list/details. Independent re-review
+closed both with no remaining actionable finding. A 34×8 QR assertion confirms
+Esc guidance and no fixture payload exposure; compact QR may be too large to
+display, but can be cleared. [M10 evidence](docs/evidence/milestone-10.md)
+records the integrated results and limitations.
+
+The user removed M9 as a prerequisite without accepting its unchecked M9-A1–A9
+criteria. The project configuration specifies GPT-6-Sol/medium for the
+coordinator and GPT-6-Luna/high for all four custom roles. No new dependencies
+were added.
 
 #### Outcome
 
-Milestone in progress; no M10 acceptance is claimed. Next action: implement
+Milestone 10 accepted for scoped TUI presentation on the integrated source
-M10.1, then independent review/repair and M10.2–M10.4 checks. M9 stays retired.
+identified in [M10 evidence](docs/evidence/milestone-10.md). M9 stays retired
+and unaccepted. The user's subsequent AllowedIPs classification request is
+handled in M11 below.
+
+### Milestone 11 — Valid subnet routes shown as a capability limitation
+
+Status: accepted (2026-10-26T21:20:07Z). Prerequisite M10 accepted; M9 was
+retired by user direction and remains unaccepted. This is the subsequent
+user-requested behavior change. No VM work is in scope.
+
+#### Outcome and scope
+
+Keep a peer with valid extra subnet routes in the client list as `inspection
+only`, without treating those routes alone as a configuration anomaly or
+counting them on the issues screen. Details explain neutrally: “This peer
+contains subnet routes. Managing this configuration is not supported yet.”
+Malformed addresses, invalid keys, duplicate identities, document issues and
+other genuine errors remain visible. Preserve all source bytes and routes;
+do not expand the mutable client model, address allocation or restart
+verification, or remove safety checks.
+
+#### Context and implementation steps
+
+Read the parser, projection and TUI before editing. `ConfigDocument::parse`
+already distinguishes parse errors from valid `IpNet` values outside the
+client model. `Application::display_projection` retains all peer issues and
+marks projection failures inspection-only. The TUI currently treats every
+peer issue as an anomaly in list/details/`!` at the start of M11. Classify valid unsupported
+address shape separately at the presentation boundary, while retaining raw
+issues for edit/restart safety. A subnet-specific capability notice must be
+derived from parsed routes, not from parsing display strings. M2's historical
+“inspection issues” wording described visibility; this user-directed change
+refines their UI severity without rewriting M2's acceptance evidence.
+
+| Task | Owner | Scope and expected result | State |
+| --- | --- | --- | --- |
+| M11.1 | implementer | Add explicit error-versus-capability classification and focused parser/projection/TUI regressions for valid subnet routes, normal client and genuine errors; preserve mutation guards. | complete: parser/projection/TUI regressions and safety preservation inspected; integrated review closed |
+| M11.2 | reviewer / repairer | Independently review behavior, safety boundaries and tests; repair and re-review actionable findings. | complete: R1 withdrawn after source-based re-evaluation; R2 repaired and independently re-reviewed with no remaining finding |
+| M11.3 | coordinator | Run focused and full Rust gates, record source/evidence and make acceptance decision. | complete: integrated gates passed; source fingerprints/results in [M11 evidence](docs/evidence/milestone-11.md) |
+
+#### Acceptance and validation
+
+- [x] M11-A1: a peer with `10.9.0.10/32, 192.168.88.0/24,
+  192.168.8.0/24` is visible as `inspection only`, with original bytes/routes
+  intact and the exact neutral details explanation.
+- [x] M11-A2: those valid subnet routes alone cause no `! anomaly`, error
+  count or `UnsupportedAllowedIpShape` text in the list or issues screen.
+- [x] M11-A3: a normal supported peer remains mutable and unchanged; malformed
+  addresses, invalid keys, duplicate identities and document issues remain
+  visible as errors/ambiguities alongside any valid capability limitation.
+- [x] M11-A4: unsupported peers remain protected from TUI/application unsafe
+  mutations; allocation and restart verification behavior are unchanged.
+- [x] M11-A5: focused regressions, independent review and all applicable Rust
+  completion gates pass on the integrated result.
+
+Planned checks: focused document, application, TUI and config-preservation
+tests; `cargo fmt --all -- --check`, `cargo clippy --locked --all-targets --
+-D warnings`, `cargo test --locked`, `cargo build --locked --release`, and
+`git diff --check`. Use synthetic fixtures only. No Alpine, VM or production
+checks are needed for this classification/presentation change.
+
+#### Outcome
+
+Accepted for the requested classification/presentation behavior. **M11-R1
+(withdrawn)**: review initially called a second
+distinct `/32` route a configuration error; reviewer re-evaluated against
+the WireGuard `wg(8)` format and confirmed it is another valid shape beyond
+the client model, with no actionable finding. **M11-R2 (coordinator, closed)**:
+without any subnet, valid additional host routes or IPv6-only shapes still
+appeared as anomalies. The repair classifies parsed-valid shape variants as
+capability limitations for display, retains raw issues for safety, and adds a
+generic detail notice for non-subnet cases. Independent re-review found no
+actionable issue. [M11 evidence](docs/evidence/milestone-11.md) records the
+source, focused checks and all Rust gates. An external workspace actor advanced
+HEAD to `18f28ee` while M11.1 was underway; the review covered committed and
+uncommitted M11 inputs. This team created no commit. No Alpine, VM or
+production behavior is claimed. Stop after this milestone.
 
 ## Current progress and resume point
 
 - Bounded TUI maintenance (2026-10-26): repaired list arrows opening client details. Up/Down now only move the highlight; Enter opens details and Esc returns. Initial navigation follows the renderer's first-row highlight. Independent review closed NAV-001 with no remaining scoped findings; validation is recorded in [navigation repair evidence](docs/evidence/tui-navigation.md). This does not advance M9 or supply VM/Alpine acceptance evidence; prior artifact identities remain historical after this Rust change.
 - Milestones 1–8 are accepted; milestone 9 is retired by user direction and unaccepted. Its real systemd/D-Bus checks remain unverified and are not a prerequisite to M10.
-- Milestone 10 is in progress: implement the styled keyboard quick reference in the bottom bordered panel, then review and validate it.
+- Milestone 10 is accepted: the styled keyboard quick reference passed independent review, focused synthetic/PTY checks and Rust completion gates.
+- Milestone 11 is accepted for valid but unsupported AllowedIPs route presentation; focused and full Rust gates and independent re-review passed. Real systemd/D-Bus and IPv6 behavior remain unverified.
 - The approved dependency list is in [DEPENDENCIES.md](docs/DEPENDENCIES.md); container testing methodology is in [TESTING.md](docs/TESTING.md).
 - Milestone 1 is expanded and the Rust environment is pinned.
 - Milestone 2 delivered a lossless in-memory WireGuard configuration editor, versioned metadata, and behavioral preservation tests.
@@ -3389,7 +3483,7 @@ M10.1, then independent review/repair and M10.2–M10.4 checks. M9 stays retired
 
 - Milestone 8 delivered reviewed opt-in Alpine Testcontainers coverage for real IPv4 WireGuard peers, application lifecycle, saved/runtime separation, restoration, import/reissue, backup failures and the real Rustix reader. Host gates and three fresh real-container runs passed on one stable source fingerprint; M8-A1–A10 accepted. Real IPv6 behavior is unverified by user-authorized scope.
 - Milestone 9 is retired and unaccepted: the reviewed disposable VM preparation and guarded first start did not establish Debian/systemd acceptance. The exact VM was powered off after the user stopped work. M9.2–M9.3 were not started; M9-A1–A9 are unchecked.
-- Next action: execute M10.1. Do not restart the VM, access production, commit, or deploy.
+- Next action: stop after M11 and await user direction. Do not restart the VM, access production, commit, or deploy.
 
 ## Plan maintenance
 

README.md

@@ -56,9 +56,16 @@ claim a completed systemd VM run or real IPv6 qualification.
 
 ## Terminal workflows
 
-The client list supports arrow-key selection, Enter for details, `?` for help,
+The bordered **Keys** panel at the bottom of the screen shows shortcuts for the
-and `q` to exit. Exit warns when a draft would be discarded; it never commits
+current screen and form. On narrow list and details screens it prioritizes
-implicitly. From the list or details screen, the current shortcuts are:
+navigation and Help, and indicates when additional actions are omitted; resize
+the terminal to see more. Forms, QR disclosure and progress show only their
+applicable controls. Press `?` from the list or details screen to open Help,
+which contains the complete shortcut reference. The client list supports
+arrow-key selection, Enter for details, and `q` to exit. Exit warns when a draft
+would be discarded; it never commits implicitly. Uppercase shortcuts are
+distinct from lowercase shortcuts (`R` previews restart, while `r` renames;
+`B` creates a backup, while `b` lists backups):
 
 | Key | Action |
 | --- | --- |

docs/evidence/milestone-10.md

@@ -0,0 +1,49 @@
+# Milestone 10 acceptance evidence
+
+Run: 2026-10-26T21:07:24Z, local development workspace. This report covers the
+styled TUI keyboard footer only. Milestone 9 remains retired and unaccepted.
+
+## Source and environment
+
+- HEAD: `e141c03c2c401b09ad0fa78557cb9403640ea80a`; working tree was dirty
+  with `PLANS.md`, `README.md`, `src/delivery/qr.rs`, and `src/tui/render.rs`.
+  The following SHA-256 values identify the relevant integrated inputs at the
+  gates: `render.rs` `40e2abc891cc562a628eb661dcdcd3e052818c4332c25f3ae555e184d9adb65d`;
+  `forms.rs` `8ecbd614c1ecc7f1ab4cbae9223f9820c5d8315c62a54cffbc6d5c2e640f6c31`;
+  `qr.rs` `b8d30e6b24370fd1e3d666586481af74b12f279043cb1e0a7a1e61923588c4b8`;
+  `README.md` `fa4ef797565895dbd78f920e92263df718720bdb84dba48da88e611020638741`;
+  `Cargo.lock` `b8549df27f971dc550218cfc28e788f6630a1e13e7df538aded38e969ab713b6`.
+- `rustc 1.97.1 (8bab26f4f 2026-07-14)` and `cargo 1.97.1
+  (c980f4866 2026-06-30)`. The release build used the locked local target;
+  no container, VM, production service or VPN was accessed.
+
+## Checks and scope
+
+| Exact command | Result |
+| --- | --- |
+| `cargo test --locked tui::` | Exit 0; 38 TUI unit tests passed. |
+| `cargo test --locked --test tui_workflow` | Exit 0; 6 integration tests passed, including isolated PTY smoke. |
+| `cargo fmt --all -- --check` | Exit 0. |
+| `cargo clippy --locked --all-targets -- -D warnings` | Exit 0 after M10.3-R1 repair. |
+| `cargo test --locked` | Exit 0; 271 library units passed, 2 opt-in container drivers ignored; all integration suites and 2 compile-fail doctests passed. The Testcontainers target reported 25 passed and 1 ignored; no opt-in Alpine run occurred. |
+| `cargo build --locked --release` | Exit 0. |
+| `git diff --check` | Exit 0. |
+
+The TestBackend checks cover 120×30, 80×24, 40×8, 34×8 and below-minimum
+rendering. They assert visible footer interior, styled key labels, applicable
+80×24 list actions, compact navigation/Help and overflow, context-specific
+forms/progress, and QR Esc guidance without fixture payload disclosure. These
+are synthetic buffer checks; no physical terminal QR scan or systemd behavior
+is claimed.
+
+## Review and decision
+
+Independent M10.1 review found R1/R2 context/form hint issues; repair and
+re-review closed both on the integrated implementation. A separate fresh
+integrated M10.3 review found R1 (Clippy failure) and R2 (README context
+overstatement). The repairer fixed both; the same independent reviewer
+re-reviewed the repaired state and reported no remaining actionable finding.
+The reviewer supported M10-A1–A5 within synthetic/PTY scope; the coordinator's
+full gates above satisfy M10-A6. Compact QR may show a too-large condition at
+34×8 while retaining Esc clearing guidance. M10 acceptance is scoped to TUI
+presentation and does not upgrade M9 systemd/IPv6 evidence.

docs/evidence/milestone-11.md

@@ -0,0 +1,62 @@
+# Milestone 11 acceptance evidence
+
+Run: 2026-10-26T21:20:07Z, local development workspace. This report covers
+presentation of valid but unsupported peer `AllowedIPs` shapes. It does not
+establish runtime WireGuard, Alpine or systemd behavior.
+
+## Source and environment
+
+- HEAD `18f28eef02d6a9f94a1d34ad94e25079ebf125a2`; the working tree was
+  dirty with `PLANS.md`, `src/app.rs`, `src/tui/render.rs`,
+  `src/tui/terminal.rs`, and `tests/config_preservation.rs`. An external
+  workspace actor created HEAD during implementation; this team created no
+  commit. The integrated inputs at the gates have SHA-256 values:
+  `app.rs` `75935d694d85cad11511ffbcff093cc7ebded08f02eb26589cb552fdbe1c7720`;
+  `document.rs` `af4fed6c25fe4b801112d19fe4867ed809c6a05e68492c3a53cc4829ac3b766b`;
+  `render.rs` `2f673febaba9e6f0ada1c274f33c0db02fe78fd2bca50310b1215d5a22dd8c9f`;
+  `terminal.rs` `ed9a99932dddbaf508667c5f17886704bda749264c53cc60c7e29b889a56e074`;
+  `config_preservation.rs` `0cdac39ac6ac370aaa85ea13610cb00f778a7efc559a39896212d96c6147f0b0`;
+  `Cargo.lock` `b8549df27f971dc550218cfc28e788f6630a1e13e7df538aded38e969ab713b6`.
+- `rustc 1.97.1 (8bab26f4f 2026-07-14)`; `cargo 1.97.1
+  (c980f4866 2026-06-30)`. Synthetic fixtures and Ratatui TestBackend only;
+  no production, Docker, VM or live VPN action.
+
+## Checks and scope
+
+| Exact command | Result |
+| --- | --- |
+| `cargo test --locked valid_subnet_routes_are_classified_without_changing_source_or_mutation_safety` | Exit 0; focused config preservation test passed. |
+| `cargo test --locked tui::render::tests::client_rows_show_draft_state_and_escape_anomalous_unsupported_peers` | Exit 0; focused list/details test passed. |
+| `cargo test --locked --lib issues_screen_hides_valid_address_shape_limits_but_keeps_genuine_errors` | Exit 0; focused issue-screen test passed after repair. |
+| `cargo test --locked --test config_preservation` | Exit 0; 10 tests passed. |
+| `cargo fmt --all -- --check` | Exit 0. |
+| `cargo clippy --locked --all-targets -- -D warnings` | Exit 0. |
+| `cargo test --locked` | Exit 0; 272 library tests passed, 2 opt-in drivers ignored; integration and 2 compile-fail doctests passed. Testcontainers target reported 25 passed and 1 ignored without starting Alpine. |
+| `cargo build --locked --release` | Exit 0. |
+| `git diff --check` | Exit 0. |
+
+The parser preserves the valid example's original source and all three routes.
+The application leaves its raw peer issues and unsupported projection intact;
+the TUI presents parsed-valid address-shape limitations separately from
+malformed input. The list and issue screen omit capability-only diagnostics;
+details show the exact subnet explanation. Tests also cover a normal supported
+client, extra host routes, IPv6-only shape, mixed malformed route, and existing
+broad-route deletion safety. Alias-only rename of an unprojectable peer retains
+its existing behavior and preserves routes. The TUI still blocks normal client
+mutations for unprojectable peers.
+
+## Review and decision
+
+Fresh independent review initially raised M11-R1, treating a second distinct
+`/32` host route as a configuration error. After checking the WireGuard
+[`wg(8)` AllowedIPs format](https://man7.org/linux/man-pages/man8/wg.8.html),
+the reviewer withdrew R1: a valid additional host route is another model
+capability limitation. The coordinator raised M11-R2 because non-subnet valid
+address shapes were still displayed as anomalies. A repairer classified the
+two parsed-valid shape variants consistently for presentation, kept all raw
+issues for safety, and added regressions. Independent re-review reported no
+remaining actionable finding. A1–A4 passed within source/fixture scope; the
+integrated gates above satisfy A5.
+
+No real WireGuard or systemd behavior was exercised. Milestone 9 remains
+retired and unaccepted; real systemd/D-Bus and IPv6 capability are unverified.

src/app.rs

@@ -46,10 +46,29 @@ pub struct ClientDisplay {
     pub identity: Option<PublicKey>,
     pub label: String,
     pub allowed_ips: Vec<String>,
+    pub has_subnet_routes: bool,
     pub issues: Vec<crate::wireguard::PeerIssue>,
     pub mutable_identity: Option<PublicKey>,
 }
 
+impl ClientDisplay {
+    /// Whether a retained parser issue describes a valid address shape the
+    /// client model cannot manage, rather than a malformed configuration.
+    pub fn is_capability_limitation_issue(&self, issue: &crate::wireguard::PeerIssue) -> bool {
+        matches!(
+            issue,
+            crate::wireguard::PeerIssue::UnsupportedAllowedIpShape { .. }
+                | crate::wireguard::PeerIssue::MissingIpv4HostRoute
+        )
+    }
+
+    pub fn presented_issues(&self) -> impl Iterator<Item = &crate::wireguard::PeerIssue> {
+        self.issues
+            .iter()
+            .filter(|issue| !self.is_capability_limitation_issue(issue))
+    }
+}
+
 /// Secret-free display projection of the current document and client state.
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub struct SessionDisplay {
@@ -553,6 +572,7 @@ impl Application {
                     identity,
                     label,
                     allowed_ips: peer.allowed_ips.iter().map(ToString::to_string).collect(),
+                    has_subnet_routes: peer.has_subnet_routes,
                     issues: peer.issues.clone(),
                     mutable_identity: projected
                         .filter(|client| self.states.draft().get(&client.identity).is_some())

src/delivery/qr.rs

@@ -84,6 +84,12 @@ fn encode_bytes(bytes: &[u8]) -> Result<QrCodeOutput, QrError> {
     Ok(QrCodeOutput { side, modules })
 }
 
+/// Small, non-secret QR used only to exercise the terminal disclosure renderer.
+#[cfg(test)]
+pub(crate) fn synthetic_test_output() -> QrCodeOutput {
+    encode_bytes(b"synthetic QR disclosure fixture").expect("synthetic QR payload encodes")
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

src/tui/render.rs

@@ -230,8 +230,8 @@ fn keyboard_hints(state: &UiState, forms: &FormController) -> Vec<Hint> {
                 add("c", "Commit", HintKind::Action);
                 add("x", "discard", HintKind::Destructive);
                 add("R", "restart", HintKind::Destructive);
-                if let Some(id) = state.selected_identity {
+                if let Some(id) = state.selected_identity
-                    if state
+                    && state
                         .view
                         .as_ref()
                         .and_then(|view| view.client_states.get(&id))
@@ -241,7 +241,6 @@ fn keyboard_hints(state: &UiState, forms: &FormController) -> Vec<Hint> {
                     add("o", "first file", HintKind::Action);
                     add("O", "password reissue", HintKind::Action);
                 }
-                }
                 add("b", "backups / restore", HintKind::Action);
                 add("B", "backup", HintKind::Action);
                 if state
@@ -497,6 +496,7 @@ fn render_list(frame: &mut Frame<'_>, area: ratatui::layout::Rect, state: &UiSta
         .clients
         .iter()
         .map(|client| {
+            let visible_issues: Vec<_> = client.presented_issues().collect();
             let identity = client
                 .identity
                 .map(|key| short_key(&key))
@@ -520,15 +520,15 @@ fn render_list(frame: &mut Frame<'_>, area: ratatui::layout::Rect, state: &UiSta
                         (None, None) => "State unavailable".to_owned(),
                     },
                 );
-            let anomaly_marker = if client.issues.is_empty() {
+            let anomaly_marker = if visible_issues.is_empty() {
                 String::new()
             } else {
                 " ! anomaly".to_owned()
             };
-            let anomaly_details = if client.issues.is_empty() {
+            let anomaly_details = if visible_issues.is_empty() {
                 String::new()
             } else {
-                format!("  {}", safe_text(&format!("{:?}", client.issues)))
+                format!("  {}", safe_text(&format!("{:?}", visible_issues)))
             };
             ListItem::new(Line::from(vec![
                 Span::raw(format!("{row_state}{anomaly_marker}  ")),
@@ -652,6 +652,19 @@ fn detail_lines(client: &ClientDisplay, view: &SessionView) -> Vec<Line<'static>
             }
         )),
     ];
+    let has_capability_limitation = client
+        .issues
+        .iter()
+        .any(|issue| client.is_capability_limitation_issue(issue));
+    if client.has_subnet_routes {
+        lines.push(Line::from(
+            "This peer contains subnet routes. Managing this configuration is not supported yet.",
+        ));
+    } else if has_capability_limitation {
+        lines.push(Line::from(
+            "This peer uses valid address routes that this client model cannot manage yet.",
+        ));
+    }
     if let Some(identity) = client.identity {
         if let Some(row) = view.client_states.get(&identity) {
             lines.push(Line::from(format!(
@@ -697,7 +710,7 @@ fn detail_lines(client: &ClientDisplay, view: &SessionView) -> Vec<Line<'static>
         }
     }
     lines.push(Line::from(format!("Applied state: {:?}", view.applied)));
-    for issue in &client.issues {
+    for issue in client.presented_issues() {
         lines.push(Line::from(format!(
             "Peer issue: {}",
             safe_text(&format!("{issue:?}"))
@@ -833,6 +846,44 @@ mod tests {
         }
     }
 
+    fn saved_client_view(identity: PublicKey) -> SessionView {
+        let client = crate::domain::Client::new(
+            identity,
+            "synthetic client",
+            crate::domain::ClientAddresses {
+                ipv4: Ipv4Addr::new(10, 0, 0, 2),
+                ipv6: None,
+            },
+        )
+        .unwrap();
+        SessionView {
+            generation: 0,
+            clients: vec![ClientDisplay {
+                peer_index: 0,
+                line: 1,
+                identity: Some(identity),
+                label: "synthetic client".to_owned(),
+                allowed_ips: vec!["10.0.0.2/32".to_owned()],
+                has_subnet_routes: false,
+                issues: vec![],
+                mutable_identity: Some(identity),
+            }],
+            client_states: BTreeMap::from([(
+                identity,
+                super::super::state::ClientStateRow {
+                    saved: Some(client.clone()),
+                    draft: Some(client),
+                },
+            )]),
+            document_issues: Vec::new(),
+            applied: super::super::state::AppliedState::Unknown,
+            reserved_addresses: Default::default(),
+            statistics: RuntimeObservation::unknown(),
+            has_draft: false,
+            vault_initialized: true,
+        }
+    }
+
     #[test]
     fn bottom_keyboard_panel_has_visible_interior_and_styled_key_labels() {
         let state = UiState {
@@ -869,6 +920,9 @@ mod tests {
         let style = buffer[key].style();
         assert!(style.add_modifier.contains(Modifier::BOLD));
         assert_eq!(style.fg, Some(Color::Green));
+        let action = buffer[(key.0 + 1, key.1)].style();
+        assert!(matches!(action.fg, None | Some(Color::Reset)));
+        assert!(!action.add_modifier.contains(Modifier::BOLD));
     }
 
     #[test]
@@ -889,6 +943,111 @@ mod tests {
         assert!(text.lines().last().unwrap().contains('└'));
     }
 
+    #[test]
+    fn requested_terminal_sizes_keep_borders_nonoverlapping_and_footer_inside_panel() {
+        let state = UiState {
+            view: Some(empty_view()),
+            ..UiState::default()
+        };
+        for (width, height) in [(120, 30), (80, 24), (40, 8), (34, 8)] {
+            let mut terminal = Terminal::new(TestBackend::new(width, height)).unwrap();
+            terminal
+                .draw(|frame| draw(frame, &state, &FormController::default()))
+                .unwrap();
+            let buffer = terminal.backend().buffer();
+            let text = rendered_text(&terminal);
+            assert!(text.contains("Keys"), "missing footer at {width}x{height}");
+            let bottom = height - 1;
+            assert!(buffer[(0, bottom)].symbol().contains('└'));
+            assert!(buffer[(width - 1, bottom)].symbol().contains('┘'));
+            assert!(buffer[(1, bottom)].symbol().contains('─'));
+            assert!(buffer[(0, bottom - 1)].symbol().contains('│'));
+            assert!(
+                text.lines()
+                    .any(|line| line.contains("select") || line.contains("new")),
+                "footer has no visible interior hint at {width}x{height}: {text}"
+            );
+        }
+    }
+
+    #[test]
+    fn list_at_80x24_shows_each_applicable_saved_client_action() {
+        let identity = PublicKey::from_bytes([4; 32]);
+        let state = UiState {
+            selected_identity: Some(identity),
+            view: Some(saved_client_view(identity)),
+            ..UiState::default()
+        };
+        let mut terminal = Terminal::new(TestBackend::new(80, 24)).unwrap();
+        terminal
+            .draw(|frame| draw(frame, &state, &FormController::default()))
+            .unwrap();
+        let text = rendered_text(&terminal);
+        for expected in [
+            "↑/↓ select",
+            "Enter details",
+            "? Help",
+            "q exit",
+            "n new",
+            "r rename",
+            "d delete",
+            "p preview",
+            "c Commit",
+            "x discard",
+            "R restart",
+            "o first file",
+            "O password reissue",
+            "b backups / restore",
+            "B backup",
+            "i import",
+            "! issues",
+        ] {
+            assert!(
+                text.contains(expected),
+                "missing {expected:?} in 80x24 render:\n{text}"
+            );
+        }
+        assert!(text.contains("R restart") && text.contains("r rename"));
+    }
+
+    #[test]
+    fn qr_disclosure_keeps_esc_clear_hint_and_never_renders_fixture_payload() {
+        let mut forms = FormController::default();
+        forms.open_disclosure(
+            crate::delivery::qr::synthetic_test_output(),
+            "Activation pending".to_owned(),
+        );
+        let mut terminal = Terminal::new(TestBackend::new(80, 24)).unwrap();
+        terminal
+            .draw(|frame| draw(frame, &UiState::default(), &forms))
+            .unwrap();
+        let text = rendered_text(&terminal);
+        assert!(text.contains("Secret disclosure"));
+        assert!(text.contains("Esc clears QR") || text.contains("Esc clear QR"));
+        assert!(text.contains("clear QR"));
+        assert!(!text.contains("synthetic QR disclosure fixture"));
+
+        let mut compact = Terminal::new(TestBackend::new(34, 8)).unwrap();
+        compact
+            .draw(|frame| draw(frame, &UiState::default(), &forms))
+            .unwrap();
+        let compact_text = rendered_text(&compact);
+        assert!(compact_text.contains("clear QR"));
+        assert!(!compact_text.contains("synthetic QR disclosure fixture"));
+    }
+
+    #[test]
+    fn below_minimum_terminal_shows_resize_message_without_drawing_footer() {
+        let mut terminal = Terminal::new(TestBackend::new(33, 7)).unwrap();
+        terminal
+            .draw(|frame| draw(frame, &UiState::default(), &FormController::default()))
+            .unwrap();
+        let text = rendered_text(&terminal);
+        assert!(text.contains("Terminal too small"));
+        assert!(text.contains("34 × 8"));
+        assert!(!text.contains("Keys"));
+    }
+
     #[test]
     fn compact_form_hints_follow_the_active_form_without_leaking_input() {
         let state = UiState::default();
@@ -945,6 +1104,7 @@ mod tests {
                 identity: Some(identity),
                 label: "client".to_owned(),
                 allowed_ips: vec![],
+                has_subnet_routes: false,
                 issues: vec![],
                 mutable_identity: Some(identity),
             }],
@@ -1040,6 +1200,7 @@ mod tests {
                     identity: Some(identity),
                     label: "new alias".to_owned(),
                     allowed_ips: vec!["10.20.0.2/32".to_owned()],
+                    has_subnet_routes: false,
                     issues: vec![],
                     mutable_identity: Some(identity),
                 },
@@ -1049,10 +1210,14 @@ mod tests {
                     identity: Some(unsupported_key),
                     label: "odd\u{1b}[31m peer".to_owned(),
                     allowed_ips: vec!["bad\nroute".to_owned()],
-                    issues: vec![crate::wireguard::PeerIssue::UnsupportedAllowedIpShape {
+                    has_subnet_routes: true,
+                    issues: vec![
+                        crate::wireguard::PeerIssue::UnsupportedAllowedIpShape {
                             field: 0,
                             item: 1,
-                    }],
+                        },
+                        crate::wireguard::PeerIssue::MalformedAllowedIp { field: 0, item: 2 },
+                    ],
                     mutable_identity: None,
                 },
             ],
@@ -1079,7 +1244,7 @@ mod tests {
             has_draft: true,
             vault_initialized: true,
         };
-        let state = UiState {
+        let mut state = UiState {
             view: Some(view),
             ..UiState::default()
         };
@@ -1100,9 +1265,54 @@ mod tests {
         assert!(rendered.contains("inspection only"));
         assert!(rendered.contains("removed alias"));
         assert!(rendered.contains("Draft removed"));
-        assert!(rendered.contains("UnsupportedAllowedIpShape"));
+        assert!(rendered.contains("MalformedAllowedIp"));
+        assert!(!rendered.contains("UnsupportedAllowedIpShape"));
+        assert!(
+            rendered.contains("! anomaly"),
+            "mixed genuine error stays visible"
+        );
+        let subnet_only = ClientDisplay {
+            has_subnet_routes: true,
+            issues: vec![crate::wireguard::PeerIssue::UnsupportedAllowedIpShape {
+                field: 0,
+                item: 1,
+            }],
+            ..state.view.as_ref().unwrap().clients[1].clone()
+        };
+        assert!(
+            subnet_only.issues.len() == 1,
+            "raw safety issue is retained"
+        );
+        assert!(subnet_only.presented_issues().next().is_none());
+        assert!(detail_lines(&state.view.as_ref().unwrap().clients[1], state.view.as_ref().unwrap())
+            .iter()
+            .any(|line| line.to_string().contains(
+                "This peer contains subnet routes. Managing this configuration is not supported yet."
+            )));
+        let additional_host = ClientDisplay {
+            has_subnet_routes: false,
+            issues: vec![crate::wireguard::PeerIssue::UnsupportedAllowedIpShape {
+                field: 0,
+                item: 1,
+            }],
+            ..state.view.as_ref().unwrap().clients[1].clone()
+        };
+        let additional_host_details = detail_lines(&additional_host, state.view.as_ref().unwrap());
+        assert!(
+            additional_host_details
+                .iter()
+                .any(|line| line.to_string().contains(
+                    "This peer uses valid address routes that this client model cannot manage yet."
+                ))
+        );
+        assert!(!additional_host_details.iter().any(|line| {
+            line.to_string()
+                .contains("Peer issue: UnsupportedAllowedIpShape")
+        }));
         assert!(rendered.contains("odd\\u{1b}[31m peer"));
         assert!(rendered.contains("bad\\nroute"));
+        state.view.as_mut().unwrap().clients[1].issues =
+            vec![crate::wireguard::PeerIssue::UnsupportedAllowedIpShape { field: 0, item: 1 }];
 
         let mut narrow = Terminal::new(TestBackend::new(34, 12)).unwrap();
         narrow
@@ -1118,7 +1328,8 @@ mod tests {
             .collect::<Vec<_>>()
             .join("\n");
         assert!(narrow_rendered.contains("Draft changed"));
-        assert!(narrow_rendered.contains("! anomaly"));
+        assert!(!narrow_rendered.contains("! anomaly"));
+        assert!(!narrow_rendered.contains("UnsupportedAllowedIpShape"));
         assert!(narrow_rendered.contains("Draft removed"));
     }
 }

src/tui/state.rs

@@ -315,6 +315,7 @@ mod tests {
             identity: Some(identity),
             label: label.to_owned(),
             allowed_ips: vec!["10.0.0.2/32".to_owned()],
+            has_subnet_routes: false,
             issues: if mutable {
                 Vec::new()
             } else {

src/tui/terminal.rs

@@ -19,7 +19,7 @@ use super::events::{
 };
 use super::forms::{FormAction, FormController};
 use super::render;
-use super::state::{Screen, UiState};
+use super::state::{Screen, SessionView, UiState};
 use crate::app::Application;
 
 const MIN_WIDTH: u16 = 34;
@@ -765,22 +765,7 @@ fn handle_key(
                 state.screen = Screen::Message;
                 return;
             };
-            let mut issues = Vec::new();
+            state.status_message = Some(issue_summary(view));
-            issues.extend(
-                view.document_issues
-                    .iter()
-                    .map(|issue| format!("Document issue: {issue:?}")),
-            );
-            for client in &view.clients {
-                for issue in &client.issues {
-                    issues.push(format!("Peer at line {}: {issue:?}", client.line));
-                }
-            }
-            state.status_message = Some(if issues.is_empty() {
-                "No document or peer issues were reported.".to_owned()
-            } else {
-                issues.join("\n")
-            });
             state.screen = Screen::Message;
             state.scroll_offset = 0;
         }
@@ -802,6 +787,25 @@ fn handle_key(
     }
 }
 
+fn issue_summary(view: &SessionView) -> String {
+    let mut issues = Vec::new();
+    issues.extend(
+        view.document_issues
+            .iter()
+            .map(|issue| format!("Document issue: {issue:?}")),
+    );
+    for client in &view.clients {
+        for issue in client.presented_issues() {
+            issues.push(format!("Peer at line {}: {issue:?}", client.line));
+        }
+    }
+    if issues.is_empty() {
+        "No document or peer issues were reported.".to_owned()
+    } else {
+        issues.join("\n")
+    }
+}
+
 /// Handle list/detail navigation and return whether the key was consumed.
 /// Keeping this path independent of worker actions makes its state transitions
 /// directly testable without starting an application worker.
@@ -921,6 +925,7 @@ mod tests {
             identity: None,
             label: "unsupported peer".to_owned(),
             allowed_ips: Vec::new(),
+            has_subnet_routes: false,
             issues: vec![PeerIssue::MissingIpv4HostRoute],
             mutable_identity: None,
         };
@@ -933,6 +938,7 @@ mod tests {
                     identity: Some(first),
                     label: "first".to_owned(),
                     allowed_ips: vec!["10.0.0.2/32".to_owned()],
+                    has_subnet_routes: false,
                     issues: Vec::new(),
                     mutable_identity: Some(first),
                 },
@@ -1007,6 +1013,38 @@ mod tests {
         assert!(!state.selected_client_mutable());
     }
 
+    #[test]
+    fn issues_screen_hides_valid_address_shape_limits_but_keeps_genuine_errors() {
+        let mut view = navigation_view();
+        view.clients.truncate(1);
+        view.clients[0].issues = vec![PeerIssue::UnsupportedAllowedIpShape { field: 0, item: 1 }];
+        view.clients[0].has_subnet_routes = false;
+        let additional_host_only = issue_summary(&view);
+        assert_eq!(
+            additional_host_only,
+            "No document or peer issues were reported."
+        );
+        assert_eq!(
+            view.clients[0].issues,
+            vec![PeerIssue::UnsupportedAllowedIpShape { field: 0, item: 1 }],
+            "presentation must retain the parser issue for safety checks"
+        );
+
+        view.clients[0].issues = vec![PeerIssue::MissingIpv4HostRoute];
+        assert_eq!(
+            issue_summary(&view),
+            "No document or peer issues were reported.",
+            "valid IPv6-only address shape is a capability limit"
+        );
+
+        view.clients[0]
+            .issues
+            .push(PeerIssue::MalformedAllowedIp { field: 0, item: 2 });
+        let mixed = issue_summary(&view);
+        assert!(mixed.contains("MalformedAllowedIp"));
+        assert!(!mixed.contains("UnsupportedAllowedIpShape"));
+    }
+
     #[test]
     fn restart_results_render_cancel_success_and_uncertain_failure_honestly() {
         use crate::app::{RestartFailureKind, RestartReport, RestartStage};

src/wireguard/document.rs

@@ -113,6 +113,10 @@ pub struct PeerInspection {
     pub public_key_fields: Vec<DirectiveSpan>,
     /// Parsed route values. Unparseable items are represented by `PeerIssue` entries.
     pub allowed_ips: Vec<IpNet>,
+    /// True when a valid parsed route is a subnet rather than a host route.
+    /// This is a capability limitation for the current client model, not a
+    /// malformed configuration issue.
+    pub has_subnet_routes: bool,
     pub allowed_ips_fields: Vec<DirectiveSpan>,
     /// Parsed alias and safe owned block span, or an explicit metadata issue.
     pub metadata: MetadataAttachment,
@@ -346,11 +350,16 @@ impl ConfigDocument {
             let mut allowed_ips_fields = Vec::new();
             let mut has_ipv4_host_route = false;
             let mut has_ipv6_host_route = false;
+            let mut has_subnet_routes = false;
             for (field, (directive, items)) in allowed_fields.into_iter().enumerate() {
                 allowed_ips_fields.push(directive);
                 for (item, result) in items {
                     match result {
                         Ok(net) => {
+                            has_subnet_routes |= match net {
+                                IpNet::V4(network) => network.prefix_len() < 32,
+                                IpNet::V6(network) => network.prefix_len() < 128,
+                            };
                             let supported = match net {
                                 IpNet::V4(network) if network.prefix_len() == 32 => {
                                     let first = !has_ipv4_host_route;
@@ -385,6 +394,7 @@ impl ConfigDocument {
                 public_key_candidates: parsed_keys.into_iter().flatten().collect(),
                 public_key_fields,
                 allowed_ips,
+                has_subnet_routes,
                 allowed_ips_fields,
                 metadata: MetadataAttachment::Absent,
                 issues: peer_issues,

tests/config_preservation.rs

@@ -372,6 +372,45 @@ fn unsupported_routes_multiple_addresses_and_ipv6_only_round_trip_but_projection
     }
 }
 
+#[test]
+fn valid_subnet_routes_are_classified_without_changing_source_or_mutation_safety() {
+    let source = format!(
+        "# wg-admin:begin\n# wg-admin:version=1\n# wg-admin:alias=Y2xpZW50\n# wg-admin:end\n[Peer]\nPublicKey = {KEY_A}\nAllowedIPs = 10.9.0.10/32, 192.168.88.0/24, 192.168.8.0/24\n"
+    );
+    let document = ConfigDocument::parse(&source).unwrap();
+    let peer = &document.peers()[0];
+    assert!(peer.has_subnet_routes);
+    assert_eq!(peer.allowed_ips.len(), 3);
+    assert!(peer.issues.iter().any(|issue| matches!(
+        issue,
+        PeerIssue::UnsupportedAllowedIpShape { field: 0, item: 1 }
+    )));
+    assert_eq!(document.render(), source.as_bytes());
+    assert_eq!(
+        document.project_client(&key(KEY_A)),
+        Err(EditError::UnsupportedAddresses)
+    );
+    let renamed = document
+        .rename_client(&key(KEY_A), "alias-only edit remains byte-preserving")
+        .expect("safe alias-only edit remains supported");
+    assert!(
+        String::from_utf8_lossy(renamed.render())
+            .contains("AllowedIPs = 10.9.0.10/32, 192.168.88.0/24, 192.168.8.0/24")
+    );
+
+    let malformed = format!(
+        "[Peer]\nPublicKey = {KEY_A}\nAllowedIPs = 10.9.0.10/32, 192.168.88.0/24, not-an-address\n"
+    );
+    let mixed = ConfigDocument::parse(&malformed).unwrap();
+    assert!(mixed.peers()[0].has_subnet_routes);
+    assert!(
+        mixed.peers()[0]
+            .issues
+            .iter()
+            .any(|issue| matches!(issue, PeerIssue::MalformedAllowedIp { .. }))
+    );
+}
+
 #[test]
 fn parse_errors_debug_and_failed_edits_never_expose_document_secrets() {
     let document = ConfigDocument::parse(FIXTURE).unwrap();